"Nothing." Spencer groaned. "I was sure. It fit"

"Yes, it did." Gideon set a cup of coffee down in front of him. "It made complete sense"

"We'll just come up with a new idea." Hotch nodded. "We'll go over everything. Again and again, no matter how long it takes until we figure it out"

"We have one thing on our side. He wants us to figure it out. He's given us the answer. And his end game has us all together. He won't hurt any of us"

"What about Elle"

"Reid is correct about Elle. If the unsub wanted to hurt her to punish us for breaking the rules, he would have left her body behind so we'd have the message loud and clear. He took her and he's keeping her alive"

They all looked up at sound of knocking. "Garcia." "I think I have something." She walked into the room hesistantly.

"What is it"

"I think I found the book. I mean I'm not sure. But I think I found it.

"After I pulled the files on Frank Giles and Marty Harris, I was going over the video, trying to find a clear image of the guy or a clue. Anything to help. I mean, I . . . "

"You didn't cause this. He would have just found some other way." Derek said sharply. Garcia flinched. "I'm sorry. I didn't mean it"

"We're tired." Hotch cut in calmly. "We all want this over and we want Elle and Rebecca home. Anything you have that might help us -- "

"There was nothing in the video so I was thinking about the notes. Something about the one from the music box"

"Never would it be night, but always to clear day to men's sight"

"It sounds like something from a poem. And this guy is all about knights and ladies and things medieval and medieval means old and things that old are all public domain"

"And folks love to put stuff that is public domain in databases and websites"

"Yeah, so I started searching and I found this." Garcia pulled out a piece of paper. "It's a poem by Chaucer. From something called "the Parliament of Fowls. His note is the last line and a half"

"It's said to be the first true Valentine's Day poem"

"Fits with all the my fair lady talk."

"So." Garcia continued. "I thought maybe the book was a book of poems. I mean that would have pages and lines and words. But there were tons of books of Chaucer's works and medieval poetry and not all poetry collections are indexed. And he wants us to find the book so he wouldn't pick something with hundreds of choices.

"I thought it must have something to do with that poem. Maybe a book that uses that name as the title but there weren't any. And then I got to thinking that maybe it was a play on words. Like how he sent Reid the key to the box and told Gideon that the youngest had the key. But at the same time he kept sending us messages that Reid has to find the girl. Like Reid is the key to this guy's game"

"Garcia. What did you find"

"I'm getting there. I just. If I'm thinking wrong then my answer is wrong." Her voice was flustered. Her guilty feelings over the computer screwup were totally apparent. Having been cut out of most of the work, even with her inclusion in the unsub's taped instruction, must have come off as anger by the team. So while they had been hashing out the clues, running scenarios and debating profiles, she'd been off trying to find something to win back their good graces.

And she was completely correct. They all knew it. They had already had one mistake in logic. Already missed the answer. And no matter what they said, they didn't know that they had much time left. They needed to get the riddle solved as quickly as they could.

"I started playing with the words, different spellings and stuff. Looking for anything about a book and I found one. It's a book from 1963 called The Collector. The author's name is John Fowles. And he's from Great Britain"

She held out a piece of paper.

Reid took it and quickly scanned it. "Guys, Garcia could be on to something. Listen to this : a lonely young man, Frederick Clegg, who works as a clerk in a city hall, and collects butterflies in his free time. Clegg is attracted to Miranda Grey, an art student who he thinks is very beautiful. He admires her from a distance, but is unable to make any contact with her because of his nonexistent social skills. One day, he wins a large prize in the pools. This makes it possible for him to stop working and buy an isolated house in the countryside. He feels lonely, however, and wants to be with Grey. Unable to make any normal contact, Clegg decides to add her to his 'collection,' in hopes that if he keeps her captive long enough, she will grow to love him. After careful preparations, he kidnaps Grey and locks her up in the cellar of his house. He is convinced that the girl will start to love him after some time. However, when she wakes up, Grey confronts him with his actions. Clegg is embarrassed, and promises to let her go after a month. He promises to show her "every respect," pledging not to sexually molest her and to shower her with gifts and the comforts of home, on one condition: she can't leave the cellar"

"He did point out her beauty on the tape. And there was the butterfly he sent JJ. Maybe it wasn't just about telling us that he knows us"

"There's more." Garcia held out more pages. "He said in the video that the book we needed inspired adventures like his. So I searched for any mentions of the Collector being an inspiration for a kidnapping or murder. Since it was published, there have been over 40 murders where the killer claims they were inspired by the book. And there are literally hundreds of sites about killing, kidnapping, rape that all talk in detail about the book. Dozens of reviews by psychologists and profilers that say it's one of the most accurate portrayals of the mind of a psychopath ever to appear in a work of fiction"

"That's rather creepy"

"Sounds like a solid case that this is the book." Hotch, ever the lawyer, said. "But what edition. The book is foreign published and 40 years old. There's probably been at least a dozen different editions"

"You want the original 1963 British publication. Edited by a guy named John Cape"

"How can you be sure"

"It's right on the cover." She handed Hotch a copy of the book jacket. They all gasped as they looked at the photo. The cover was made up of a pale clouded yellow butterfly, a skeleton key and a lock of blonde hair tied with a pale red ribbon. Just like the clues the unsub had sent them.

"Penelope, find us a copy." Gideon said, his eyes still on the photo.

"I'm working on it sir. I'll call you as soon as I've located it." Garcia turned to leave. "Penelope." Gideon's voice stopped her and she turned back. "Good work."